Question
Biology Question on organisms and populations
Ecotone is
A
a polluted area
B
the bottom of a lake
C
a zone of transition between two communities
D
a zone of developing community
Answer
a zone of transition between two communities
Explanation
Solution
The adjacent biotic communities do not always have sharp lines of demarcation between them. There are usually transition zones, the ecotones, between them. An ecotone often has some populations from each adjacent community and some characteristic of itself. The total number of species in ecotone is generally greater than in the adjoining communities, a phenomenon called edge effect.